Re: $hit just got real!

I called my speed shop guy and he said 2110R (for LSx) Johnson Lifters are $395 for the set. Still crazy priced compared to an LS7 lifter ($140)

With a "limited travel" lifter, you are either gonna have to make your PR length selection PERFECT, or will have to go with adjustable rockers. Neither of those options really appeals to me.

In my V1, I'md having some stutter over 4.5k RPMs. I'm thinking it may be valve float: either a broken valve spring (I have duals), or a colapsed lifter. My max lift is .609, lobes are XFI/XER. Keep in mind this is after 70k miles. I should have probably swapped out my springs earlier, and I've never cracked the heads, and have 150k OEM lifters. Food for thought in your project.

I will probabaly go with the Morel Link Bars (the middle of the road ones, not the 'street' (which are cast), and not the 'race', which are the limited travel and require adjustable rockers), since I'm captain overkill.

Re: $hit just got real!

With a "limited travel" lifter, you are either gonna have to make your PR length selection PERFECT, or will have to go with adjustable rockers. Neither of those options really appeals to me.

In my V1, I'md having some stutter over 4.5k RPMs. I'm thinking it may be valve float: either a broken valve spring (I have duals), or a colapsed lifter. My max lift is .609, lobes are XFI/XER. Keep in mind this is after 70k miles. I should have probably swapped out my springs earlier, and I've never cracked the heads, and have 150k OEM lifters. Food for thought in your project.

I will probabaly go with the Morel Link Bars (the middle of the road ones, not the 'street' (which are cast), and not the 'race', which are the limited travel and require adjustable rockers), since I'm captain overkill.

-Chris

Well I ended up going with LS7 lifters since my speed shop guy got em to me for $140. I have to measure for pushrods now since I got the heads torqued and ready to plop em in. I hope the LS7 lifters are ok!

Re: $hit just got real!

Originally Posted by lollygagger8

Well I ended up going with LS7 lifters since my speed shop guy got em to me for $140. I have to measure for pushrods now since I got the heads torqued and ready to plop em in. I hope the LS7 lifters are ok!

Re: $hit just got real!

My vote (on how to spend your money, LOL) is for the Mantons. You cannot really get rigidity with hardness/heat treat alone, it comes from the diameter/wall thickness. The Mantons are great push rods.

Edit: FYI _ If you determine the pushrod length using a Comp Cam adjustable pushrod, which is marked 6.80 inches, the answer you get in terms of pushrod length is "gauge length." Guage length is used by Comp Cams, Trend (which makes Comp pushrods) and some other pushrod sellers. Manton uses "actual length" which is 0.017 inch longer than gauge length. I do not know which unit of measure Manley uses.

Re: $hit just got real!

My vote (on how to spend your money, LOL) is for the Mantons. You cannot really get rigidity with hardness/heat treat alone, it comes from the diameter/wall thickness. The Mantons are great push rods.

Edit: FYI _ If you determine the pushrod length using a Comp Cam adjustable pushrod, which is marked 6.80 inches, the answer you get in terms of pushrod length is "gauge length." Guage length is used by Comp Cams, Trend (which makes Comp pushrods) and some other pushrod sellers. Manton uses "actual length" which is 0.017 inch longer than gauge length. I do not know which unit of measure Manley uses.

Well my buddy who works for a machine shop and builds engines all the time, came over last night and we used his adjustable pushrod. We put the Yella Terras (using the "shim" which is just a washer) and tightened them down. We only got 7.325 on one and 7.33 on another.

The directions in AFR heads say using roller setup you can be anywhere from 7.300 to 7.550 <-(I think that's the last number, I can't remember) But that seems awfully low to me. Does that seem right? We are going to try it again with a dial guage and see if different results present themselves.

Ok, you talked me into it I'll get the Mantons as soon as I figure out the push rod length for sure.